Home / 151,773.14-209,445.75-83,790.05

Finding the Fourth Proportional to 151,773.14, 209,445.75 and 83,790.05

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Solution

The fourth proportional to 151,773.14, 209,445.75 and 83,790.05 is: 115,629.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,773.14 : 209,445.75 = 83,790.05 : x
  2. Step 2: Convert to fraction form
    151,773.14/209,445.75 = 83,790.05/x
  3. Step 3: Cross multiply
    151,773.14x = 209,445.75 × 83,790.05
  4. Step 4: Simplify right side
    151,773.14x = 17,549,468,817.56
  5. Step 5: Solve for x
    x = 17,549,468,817.56/151,773.14
  6. Step 6: Final answer
    x = 115,629.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.